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## Homework Statement

What is the wave speed in a brass wire with a radius of 3.35×10-4 m stretched with a tension of 120 N? The density of brass is 8.60×103 kg/m^3.

## Homework Equations

v = [tex]\sqrt{\frac{T}{\mu}}[/tex]

## The Attempt at a Solution

I have no clue about this problem. It gives me regular density but i need linear density in order for the formula to work and i don't know how or if i even can convert reg density to linear. Nor can i find any other relevant equations that would clear it up for me.

cheers